Is there any tablet that a woman can take once in...

Is there any tabs that can be taken once a month to prevent pregnancy ?
Well, the answer is no. There is no tabs that can be used once a month to prevent pregnancy but there are tabs that can be used once daily for 21 days, rest for 7 days and then repeat the same cycle. Please note that there are the morning pills which can be used as an emergency within 72 hours of having sex to prevent pregnancy.

Is there other types of contraception that can be used monthly or even annually ?
The answer is yes. There are many types of contraception which include:

• Contraceptive patches which can be used as once weekly for 3 weeks.
• Contracetive injections which can be used as once every 3 months.
• Intrauterine device IUD which can be replaced every 5 years or even more.

Recommendation:
To avoid pregnancy in the meantime, it's recommended to use condoms and to visit your GP.